<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<style>
#target::first-letter {}
#target { visibility: hidden; }
</style>
<div id="target">text</div>
<script>
'use strict';
var style;
const target = document.querySelector("#target");
var defaultComputedStyle = getComputedStyle(target);

test(function() {
  var styleRule = document.styleSheets[0].cssRules[0];
  assert_equals(styleRule.selectorText, '#target::first-letter', 'make sure we have the correct style rule');
  style = styleRule.style;
}, 'pre test setup');

// Only prefixed properties or properties not specified to apply to ::first-letter in the spec
// should be in this file; all others should be in the web-platform-test version of this file.
var validProperties = {
  webkitBorderHorizontalSpacing: '12px',
  webkitBorderVerticalSpacing: '12px',
  webkitFontSmoothing: 'none',
  visibility: 'collapse'
};

var invalidProperties = {
  webkitFilter: 'url(#)'
};

function testFirstLetterProperty(property, rule, expected, reason) {
  test(function() {
    style[property] = "";
    style[property] = rule;
    assert_equals(getComputedStyle(target, 'first-letter')[property], expected);
    style[property] = "";
  }, reason);
}

for (var property in validProperties) {
  testFirstLetterProperty(property, validProperties[property], validProperties[property],
                          "Valid property " + property + " should be applied to first-letter pseudo elements.");
}

for (var property in invalidProperties) {
  testFirstLetterProperty(property, invalidProperties[property], defaultComputedStyle[property],
                          "Invalid property " + property + " should not be applied to first-letter pseudo elements.");
}
</script>
